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Drivers: Firstly I installed the SignaLink USB as per the Tigertronics instruction manual. Installation depends upon the Operating System being used but everything is described in detail in the manual, on the Tigertronics website and downloadable manuals.

The laptop (Windows XP) shows the SignaLink as USB Audio Codec which can be accessed via the sound card settings and progams that require them, such as WSPR.

Drivers: Firstly I installed the Kenwood virtual COM port drivers (Silicon Labs C_210x USB to URT Bridge) and the ARCP590 radio control program onto the old XP laptop - not strictly necessary for WSPR, but I thought it would be useful for other occasions.

In case it's helpful to anyone, here are the settings that I find work with my Yaesu FT-891 and a G4ZLP / ZLP Electronics Data-Link USB Sound Card. I would think that this will be much the same for other USB sound cards, such as the ZLP Mini-ProSC, ZLP Pro3 and SignaLink USB.

The main puzzle that I had was finding the correct RX and TX BFO settings. This is 1500Hz. Data Mode is OTHERS Data PTT will be DAKY and as the sound card is connected to the rear of the radio, Data In Select is REAR. Data BFO is USB (upper side band). Power as low as possible - 5 watts.

Last week I finally got around to upgrading my ham radio license from technician to general. I passed the technician exam 18 years ago when I was in middle school so passing my general exam was a goal of mine for a long time. Now that my upgrade is posted on the FCC website I thought I would celebrate so I got my Raspberry Pi setup and transmitting on 20 meters. So far with my silly wire antenna set up on my front porch, I've been heard by a guy across town and two people in Texas. That gives me a range of 14 miles or 1400 miles.

During band hopping (160/80/40/30/20m) the short tx-tune (pretune) function for the next receive band works fine and tunes my ATU nicely.

However, when comming from a transmit cycle (say 40m) and hopping to a receive cycle (say 20m) no or a very short tx-tune happens!? It seems there is no power output in this case - so my ATU will not tune.

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For issues with this site, email the WSPRNET Admin Team or post to the site forum. Downloads and more information about WSPR program and the MEPT_JT mode, as well as other modes by Joe Taylor (K1JT), can be found at the WSJT Home Page.